<template>
	<div>
		<div class="search">
			<input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音" />
		</div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li 
					class="search-item border-bottom" 
					v-for="item of list" 
					:key="item.id"
					@click="handleCityClick(item.name)"
				>
					{{item.name}}
				</li>
				<li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
			</ul>
		</div>
	</div>
</template>

<script>
	import Bscroll from 'better-scroll'
	import { mapMutations } from 'vuex'
	export default {
		name :'CitySearch',
		props: {
			cities: Object
		},
		data () {
			return {
				keyword:'',
				list: [],
				timer: null
			}
		},
		methods: {
			handleCityClick (city) {
				/*this.$store.commit('changeCity',city)*/
				this.changeCity(city)
				this.$router.push('/')
			},
			...mapMutations (['changeCity'])
		},
		watch: {
			keyword () {
				if (this.timer) {
					clearTimeout(this.timer)
				}
				if(!this.keyword){
					this.list = []
					return
				}
				this.timer = setTimeout(() => {
					const result = []
					for (let i in this.cities) {
						this.cities[i].forEach((value) => {
							if (value.spell.indexOf(this.keyword) > -1 ||
								value.name.indexOf(this.keyword ) > -1){
								result.push(value)
							}
						})
					}
					this.list = result
				},100)
			}
		},
		computed: {
			hasNoData() {
				return !this.list.length
			}
		},
		mounted () {
			this.scroll = new Bscroll(this.$refs.search)
		}
	}
</script>

<style lang="stylus" scoped>
	@import '~styles/varibles.styl'
	.search
		height:.72rem
		padding: 0 .1rem
		background: $bgColor
		.search-input
			box-sizing:border-box
			height: .62rem
			padding: 0 .1rem
			line-height:.62rem
			width:100%
			text-align:center
			border-radius:.06rem
			color:#666
	.search-content
			z-index:1
			overflow:hidden
			position: absolute
			top:1.58rem
			left:0
			right:0
			bottom:0
			background:#eee
			.search-item
				line-height:.62rem
				padding-left:.2rem
				background:#fff
				color:#666
				
</style>